BUY ST7540 https://www.utsource.net/itm/p/11755054.html

Package: HTSSOP Manufacturer: ST Description: The ST7540 is a single-chip, low-power, high-performance, full-duplex, half-duplex, and simplex transceiver for data communication over twisted-pair cables. Features: Low power consumption High-speed data transmission up to 20 Mbps Full-duplex, half-duplex, and simplex modes Programmable data rate Automatic data rate detection Automatic echo cancellation Automatic data collision detection Automatic data scrambling Automatic data flow control Automatic data packet detection Automatic data packet error detection Automatic data packet retransmission Automatic data packet fragmentation Automatic data packet reassembly Applications: Home automation Industrial automation Building automation Automotive Security systems Networking Telecommunications (For reference only)